Chemical curing in alkyd paints

An evaluation via FT-IR and NMR spectroscopies

G. Bartolozzi, V. Marchiafava, V. Mirabello, M. Peruzzini, M. Picollo

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A study aimed at determining the time necessary for an alkyd paint to attain chemical curing is presented. In particular, the object of our investigation was an oil paint made by Winsor & Newton, namely French ultramarine (PB29) in the Griffin Alkyd "fast drying oil colour" series. Using this paint, we prepared several mock-ups on glass. These were left in the laboratory at room temperature in a piece of furniture with glass doors for a total of 70. days. Samples were taken at different times, and the changes in their composition were monitored by means of FT-IR and multinuclear NMR spectroscopic analyses. Since the cross-linking reactions involved in the formation of the pictorial film mainly affect the amount of carbon-carbon double bonds, we monitored the decrease in allyl, diallyl and vinyl protons and carbons. The data obtained from the use of both techniques led us to conclude that, in our particular experimental conditions, the chemical curing of the paint layer is reached within the first 70. days, thus establishing the beginning of the ageing phenomena.
Original languageEnglish
Pages (from-to)520-525
Number of pages6
JournalSpectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Volume118
Early online date13 Sep 2013
DOIs
Publication statusPublished - 24 Jan 2014

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paints
curing
Paint
Nuclear magnetic resonance spectroscopy
Curing
Infrared spectroscopy
nuclear magnetic resonance
Carbon
evaluation
spectroscopy
carbon
Drying oils
oils
Mockups
Glass
glass
newton
drying
Protons
Oils

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Chemical curing in alkyd paints : An evaluation via FT-IR and NMR spectroscopies. / Bartolozzi, G.; Marchiafava, V.; Mirabello, V.; Peruzzini, M.; Picollo, M.

In: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Vol. 118, 24.01.2014, p. 520-525.

Research output: Contribution to journalArticle

Bartolozzi, G. ; Marchiafava, V. ; Mirabello, V. ; Peruzzini, M. ; Picollo, M. / Chemical curing in alkyd paints : An evaluation via FT-IR and NMR spectroscopies. In: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 2014 ; Vol. 118. pp. 520-525.
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